Sony’s PlayStation 4 Is Running Modified FreeBSD 9

The operating system at the heart of Sony’s PlayStation 4 is FreeBSD 9.0.

It’s been exposed that the operating system powering the PlayStation 4 is Orbis OS, which is a Sony spin of FreeBSD 9.0. It’s not a huge surprise FreeBSD is being used over Linux, in part due to the more liberal licensing. The PlayStation 4 is x86_64 based now rather than Cell-based, which makes it easier to use FreeBSD.